Adcote 49

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High molecular weight polyesters that are used in solution adhesives like Adcote 49

- 222 have a tendency to form a reversible structure in solution with time. This structuring is accelerated when the adhesive is exposed to temperatures below 50°F. The s tructuring is reversible if heat and shear is applied to the adhesive. We recommend placing he container of adhesive in a steam cabinet, allowing venting of the container and heating to 110

- 140°F. After the adhesive reaches the proper temperature, mix th e adhesive in the container for 1

- 3 hours under moderate shear. Use of a disperser or “Cowles” type blade will shorten the time needed.

Caution must be taken because of the flammability of the solvents used in the adhesive. Please review MSDS for hazard s associated with the adhesive.

Attempting to redisperse without heat may reduce the apparent viscosity, but not result in a homogeneous mix. Before using the adhesive, check to make sure that all resin has returned to a true solution and no gels remain.

Laminating Combining Laminate to the second substrate using heated pressure

- nip rollers at a temperature high enough to assure complete wetting of the secondary substrate. A minimum temperature of 70°C (150°F) is recommended; however, temperatures appro aching 176°C (350°F) may be required to obtain optimum adhesive performance in laminations of heavy gauge substrate or where adhesion is of prime importance.

Bond immediately off the laminator is fair. Maximum thermal and chemical properties will develop within 7

- 14 days. For high performance applications post curing at elevated temperatures of 48°

- 66°C (100°

- 150°F) is recommended.

Safety, Handling and Storage

 Store in cool, dry, well ventilated area away from heat and ignition sources. Keep co ntainer tightly closed.

 Hot organic chemical vapors can suddenly and without warning combust when mixed with air. Ignition can occur at typical elevated temperature process conditions. Please evaluate such processes to assure safe handling conditions.

 Su pport and ground containers before opening, dispensing, mixing, pouring or emptying. Open with

non

- sparking tools. If container is warm, open bung slowly to release the internal pressure.

 Wash thoroughly after handling. Wash contaminated goggles, face s hield, and gloves. Professionally launder contaminated clothing before re

- use.

 ATTENTION! Container can be hazardous when empty. Follow label warnings even after container is empty. Do not use heat, sparks, open flames, torches or cigarettes on or near empty containers. Do not reuse empty container without professional cleaning.

 Refer to Material Safety Data Sheet for more information.



### ______________________________________________________________________ Adcote is a registered trademark of Rohm an d Haas Company. These suggestions and data are based on information we believe to be reliable. They are offered in good faith, but without guarantee, as conditions and method of use of our products are beyond our control. We recommend that the prospectiv e user determine the suitability of our materials and suggestions before adopting them on a commercial scale.

Suggestions for uses of our products or the inclusion of descriptive material from patents and the citation of specific paten ts in this publicati on should not be understood as recommending the use of our products in violation of any patent or as permission or license to use any patents of the Rohm and Haas Company.

Visit us at http://www.ro hmhaas.com/AdhesivesSealants Rohm and Haas Company, Midwest Technical Center, 2531 Technology Drive, Suite 301, Elgin, IL 60124 Phone: 847

- 649

- 3800 Fax: 847

- 649

- 3760